Effects of water matrix and ozonation on natural organic matter fractionation and corresponding disinfection by-products formation

被引：12

作者：

Agbaba, J. ^{[1
]}

Molnar, J. ^{[1
]}

Tubic, A. ^{[1
]}

Watson, M. ^{[1
]}

Maletic, S. ^{[1
]}

Dalmacija, B. ^{[1
]}

机构：

[1] Univ Novi Sad, Fac Sci, Novi Sad 21000, Serbia

来源：

WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY | 2015年 / 15卷 / 01期

关键词：

aldehydes; groundwater; natural organic matter; ozonation; trihalomethanes; DRINKING-WATER; TREATMENT-PLANT; RESERVOIR WATER; NOM FRACTIONS; REMOVAL; CHLORINATION; PREOZONATION; FORMALDEHYDE; PRECURSORS; CARBON;

D O I：

10.2166/ws.2014.086

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study the influence of water matrix and oxidation treatment by ozone on natural organic matter (NOM) fractionation and corresponding disinfection by-products formation was investigated. Three water types were selected, based on their different NOM contents (5.16-9.85 mg/L dissolved organic carbon (DOC)) and structures (42-79% proportion of hydrophobic NOM fraction). It was determined that increasing the ozone dose (0.2-0.8 mg O-3/mg DOC) generally led to reductions in DOC (2-26%) and trihalomethane formation potential values (4-58%). Results of NOM fractionation showed that the reactivity of all the individual NOM fractions towards trihalomethane formation decreased after ozone oxidation (0.8 mg O-3/mg DOC) by 47-69%, relative to the raw waters.

引用

页码：75 / 83

页数：9

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